references
large projects
Whether it's facade renovations in compliance with listed building regulations or complex steel structures – we are your reliable partner for large-scale projects. Our decades of experience enable us to implement even the largest construction projects precisely and on time. We place the greatest emphasis on quality, sustainability, and technical excellence. Even when faced with challenging requirements, we remain flexible and solution-oriented, developing the right concept for every project.
Museum of Hamburg History
Christianuem Hamburg
Town Hall Pavilions
Seizhalle - Wesperloch School
Glass dome under tension
Museum of Hamburg History
Conversion completion: 2018
Roof area: approx. 1200m2
Approx. 7,452m2 new tension cables
Approximately 1072 new intersections
After we were commissioned to carry out an investigation, it became apparent that all of the structure's nodes were only partially load-bearing. Based on these findings, imminent danger was determined, necessitating the immediate closure and scaffolding of the entire inner courtyard. Our company then conducted a comprehensive inventory and laboratory tests and developed a new renovation strategy, which was successfully implemented to ensure the structural repair. As part of the renovation measures, we developed a prototype to clarify the profiles. Four new, state-of-the-art profiles were used and integrated into the new structural design. The original structure of the glass dome resembles a post-and-beam construction, with the nodes securing the clamping plate of the outer pane using centered bolts. Special tensioning cables are used on the interior, which are held in position by custom-made guide plates. The glass dome is made of Sentry high-performance laminated glass with a stepped structure, which was specially designed in close collaboration with the German company GSK. A particular challenge and at the same time a special feature of the dome lies in its individuality: almost every panel has its own dimensions and is manufactured as a single piece, which underlines the uniqueness and precision of this project.
Monument meets school operations
Christianeum hamburg
Conversion completion: 2014
Due to the building's architectural significance, it was of utmost importance to preserve the exterior structure of the Christinaneum unchanged. The historic preservation requirements and the stringent requirements for the renovation of the façade posed a particular challenge. To meet these requirements, special profiles were developed and precisely manufactured, allowing the design features of the building to be combined with current technical standards.
Another important aspect was carrying out the renovation work during ongoing school operations. Our company therefore carefully planned to ensure school operations continued without interruption and to complete the work efficiently and on time.
To optimally supply the classrooms with fresh air, innovative tilt-and-drop top-hung windows with integrated, concealed electric drives were developed and installed. This solution combines functional modernity with an unobtrusive design that meets the building's architectural requirements.
With this project, we underline our expertise in carrying out sophisticated renovation measures on listed buildings that meet both the high aesthetic requirements and the functional needs of our clients.
Nature's Symphony
Form follows inventory
Rathauspavillons Hamburg
Conversion completion: 2024
Approx. 3500 discs, of which 55% are shaped discs
The two separate steel structures, each with a 12 x 42 m covered area, were erected in 1982. The roof consists of large barrel vaults interspersed with numerous small arcades or secondary barrel vaults. The facade of the arcade had suffered significant damage after 40 years.
The challenge of the two pavilions lies in their individuality. The steel Uk exhibits significant deformations, which made it difficult to bring the attachment profiles to a uniform size, especially at the intersections between the side domes and the large longitudinal dome. This required a great deal of patience and technical adjustments.
In coordination with the monument protection office, we developed a new support structure.
To bring the glass domes up to the latest state-of-the-art standards while maintaining aesthetic integrity, we developed new mullion profiles. The mullion profiles feature a unique fin design, which is attached to the substructure with a U-shaped piece featuring a slot for height adjustment using screws and nuts. This compensated for the height differences and created the effect of the façade floating slightly, standing out from the substructure.
Due to the many nodes between the side domes and the large longitudinal dome, 55% of the total 3500 panes are shaped panes and therefore had to be specially measured, traced and manufactured.
Monument meets school operations
Seizhalle - Wesperloh School
Conversion completion: 2014
As part of the monument protection measures, it was necessary to develop new profiles to maintain the original field layout and pane size of the façade. To meet today's thermal transmittance requirements, we designed a new pane structure.
In this context, new profiles were designed to withstand the forces of modern, heavy panes. To prevent vibrations and ensure the stability of the facade, the profiles were reinforced with 20x60mm stainless steel strips.
From the small door to the functional staircase
Small projects
Regardless of whether it is about the Replacing windows, installing doors or installing a conservatory Whatever the case, you're in good hands with us, whether it's your smaller project or your larger construction projects. We understand the importance of each individual project and are here to help. Whether you need new steel stairs or want to implement fire protection measures, we'll ensure that your wishes are implemented exactly as you envisioned.
Mobility meets clarity
MOIA facade renovation
PREVIOUSLY
Nachher
Access for all
Barrier-free passage at the town hall
Do you have experience in metal construction or facade installation? Then we look forward to receiving your unsolicited application – we are always looking for qualified specialists to join our team.
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